桉树叶不同提取物对自由基的清除能力研究  

Study on the ability of scavenging free radical of the different extracts from leaves of Eucalyptus

作　　者：梁振益[1] 王军[1] 陈神平[1] 林昭华[1] 杨雪蕊[2] 

机构地区：[1]海南大学材料与化工学院,海南省精细化工重点实验室,海口570228 [2]海南大学公共实验中心,海口570228

出　　处：《食品科技》2009年第5期204-206,共3页Food Science and Technology

基　　金：海南省自然科学基金项目(807003);海南大学科研基金项目(Kyjj0628)

摘　　要：用超声波和回流2种方法,以水、无水乙醇和丙酮为溶剂提取桉树叶,分别得到超声波提取物和回流提取物。然后采用DPPH法对不同质量浓度的各提取物进行了自由基清除实验。结果表明,桉树叶不同提取物对自由基的清除作用有较大差别,超声波法优于回流法,同时桉树叶丙酮提取物的清除能力优于BHT和BHA;不同溶剂提取物中,清除能力顺序为丙酮>乙醇>水。Different extracts from leaves of Eucalyptus were made by supersonicwave and refluxing methods with solvents of water, ethanol and acetone. Then the ability to remove free radical were measured with DPPH.. The results showed that in the extracts from Eeucalyptus leaves, supersonic wave method was better than refluxing, acetone extracts showed stronger ability of scavenging the free radical than BHT and BHA, and the order was acetone〉ethanol〉water.

关 键 词：桉树叶 自由基 清除能力 

分 类 号：TS201.2[轻工技术与工程—食品科学]